EP 1644146 A1 20060412 - BENT RAZOR BLADES AND MANUFACTURING OF SUCH RAZOR BLADES
Title (en)
BENT RAZOR BLADES AND MANUFACTURING OF SUCH RAZOR BLADES
Title (de)
GEBOGENE RASIERKLINGEN UND HERSTELLUNG SOLCHER RASIERKLINGEN
Title (fr)
LAMES DE RASOIR CINTREES ET LEUR PROCEDE DE FABRICATION
Publication
Application
Priority
- IB 2004050976 W 20040623
- EP 03101899 A 20030626
- EP 04744383 A 20040623
Abstract (en)
[origin: WO2004112986A1] The invention relates to a method of manufacturing a razor blade (4) from a blank (19), the razor blade (4) having an edge portion (6) with a cutting edge (7) and a further portion (9) bent relative to the further portion (8). The blank (19) is bent and hardened. The bending of the blank (19) includes a local heat treatment after hardening. A razor blade (4) made by this method and a device for carrying out this method are also described.
IPC 1-7
IPC 8 full level
B21D 53/64 (2006.01); B26B 21/22 (2006.01); B26B 21/56 (2006.01)
CPC (source: EP KR US)
B21D 53/00 (2013.01 - KR); B21D 53/64 (2013.01 - KR); B21D 53/645 (2013.01 - EP US); B26B 21/00 (2013.01 - KR); B26B 21/22 (2013.01 - EP US); B26B 21/40 (2013.01 - EP US); B26B 21/56 (2013.01 - KR); B26B 21/565 (2013.01 - EP US)
Citation (search report)
See references of WO 2004112986A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004112986 A1 20041229; AT E347945 T1 20070115; CN 100352573 C 20071205; CN 1812856 A 20060802; DE 602004003706 D1 20070125; DE 602004003706 T2 20071004; DE 602004003706 T3 20110505; EP 1644146 A1 20060412; EP 1644146 B1 20061213; EP 1644146 B2 20101006; JP 2007518436 A 20070712; JP 4682130 B2 20110511; KR 101123162 B1 20120319; KR 20060023995 A 20060315; US 2007124939 A1 20070607; US 2011239466 A1 20111006; US 2013185942 A1 20130725; US 9868221 B2 20180116
DOCDB simple family (application)
IB 2004050976 W 20040623; AT 04744383 T 20040623; CN 200480017944 A 20040623; DE 602004003706 T 20040623; EP 04744383 A 20040623; JP 2006516746 A 20040623; KR 20057024516 A 20040623; US 201113164004 A 20110620; US 201313790913 A 20130308; US 56146804 A 20040623